Guest Mozzallica Posted August 11, 2017 Share Posted August 11, 2017 Hello my Toyota has had ECU light on sometime and has been over fuelling and recently started spluttering and cut out it will start with easy start but cuts out the minute you stop I've had fuel.pump checked and all relays are fine it then worked for 5 miles and done the same now I'm at a loss please Help.!!!!! Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted August 11, 2017 Share Posted August 11, 2017 Have you got any warning lights on the dash? Have you checked for any stored error codes? Overfueling will be caused either by a mechanical issue like bad pump, bad fuel pressure regulator etc, or you have something electronically causing the issue like a bad ecu, bad map sensor, bad engine coolant temperature sensor etc. Does the issue happen when its cold or hot? Quote Link to comment Share on other sites More sharing options...
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